Pro Grade Countersink Drill Bit Set For Metal And Wood, Five Piece M2 Cobalt Five Flute 82 Degree Bits, Hex Shank, Sizes One Quarter To Three Quarters Inch, For Copper Aluminum And Wood

Premium M2 Cobalt Countersink Bit Set for Metal - 5-Piece ✔️ Sizes: 1/4-3/4 inch (6.35-19.05 mm); 82° 5-flute; 1/4 inch hex

This countersink drill bit set for metalworking and woodworking helps create flush screw heads and neat entrances on copper, aluminum, and wood. It’s a solid choice for cabinetry, metal fabrication, and DIY projects that require a professional finish.

✅ Five-flute design for clean, precise countersinks
✅ M2 cobalt coated for heat resistance and long life
✅ 82-degree countersink angle for standard screw seating
✅ 1/4" hex shank for quick bit changes on most drills
✅ Sizes included: 1/4", 3/8", 1/2", 5/8", 3/4" (6.35-19.05 mm)
✅ Black oxide surface treatment boosts corrosion resistance

💡 What is a countersink drill bit set used for in metalworking and woodworking?

In short, it lets screws sit flush with or below the surface and creates clean entrances for easier driving and better appearance.

• This handy set works on copper, aluminum, and wood for a professional finish
• M2 cobalt coating boosts heat resistance and longevity
• 82-degree countersink angle matches standard screw heads for a tight fit
• Includes a 1/4" hex shank for quick bit changes on compatible drills